Nuprl Lemma : i-finite-closed-is-rccint

∀[I:Interval]. I ~ [left-endpoint(I), right-endpoint(I)] supposing i-finite(I) ∧ i-closed(I)


Proof




Definitions occuring in Statement :  rccint: [l, u],  i-closed: i-closed(I),  right-endpoint: right-endpoint(I),  left-endpoint: left-endpoint(I),  i-finite: i-finite(I),  interval: Interval,  uimplies: b supposing a,  uall: ∀[x:A]. B[x],  and: P ∧ Q,  sqequal: s ~ t
Definitions unfolded in proof :  uall: ∀[x:A]. B[x],  member: t ∈ T,  uimplies: b supposing a,  and: P ∧ Q,  interval: Interval,  i-closed: i-closed(I),  isl: isl(x),  outl: outl(x),  bnot: ¬bb,  ifthenelse: if b then t else f fi ,  btrue: tt,  bor: p ∨bq,  bfalse: ff,  assert: ↑b,  i-finite: i-finite(I),  rccint: [l, u],  all: ∀x:A. B[x],  top: Top,  false: False,  prop: ℙ

Latex:
\mforall{}[I:Interval].  I  \msim{}  [left-endpoint(I),  right-endpoint(I)]  supposing  i-finite(I)  \mwedge{}  i-closed(I)



Date html generated: 2020_05_20-AM-11_32_43
Last ObjectModification: 2019_12_06-PM-02_02_19

Theory : reals


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